Cover for hatches



April 1933- J. w. [SHERWOOD ET-AL 1,904,736

COVER FOR HATGHES Filed Dec. 11, 1951 2 Sheets-Sheet 2 Zlvmntow Jme k nrzsker ad,

jfierwood.

construction being illustrated on the right.

handhalf of'Figure 3 and in the first bay of- Patented Apr. 18 1933- JOSEPH, WILLIAM 'rsnrmwoon AND 6F cnlsnnnuns'iyuuonanp; j a

covrm ron rngi jiciiris Application filed D ece'ml er ll, 1931, seriaiuoifseojneg area i This invention relates to covers for hatches of floatingve'ssels and has for its object to provide an improvement over the constructions clisclosedin our U. S; Letters Patent No. 1,679,526 granted August 7, 1928 entitled;

Hatch cover.

Referring to the accompanying drawings forming a part of thisspecification in which like reference characters designate like parts in all the views, p

Fig. 1 is a top plan view of a hatch with different types. of cover sections applied to the bays of the right hand half, the left hand half being uncovered; v

Fig. 2 is a longitudinal sectional view in diametric form of a" hatch with applied covers;

Fig. 3 is a transverse sectional view in.

diagram and illustrating the twotypes of covers also shown in Fig. 1 i

' Fig. 4 is also a transverse sectional View taken at a web whlch 1s shown in elevation,

-the covers being omitted fromthis figure;

..Figs.5 and 6 are detail sectional views through a web illustrating the manner of securing cover sections in place; 7 p

7 Figs. 7 and 8 are transverse sectional details illustratingthe mounting and secure ment of the V-shaped securing bars upon the Web; and y Figsr9 and 10 are top faces, the corrugated construction being'il lustrated on the left hand half of Figure 3 and the second bay of Figure 1, and the plane Figure 1. These hatch sections are secured in position by V-shaped securing bars 2, which are arranged over one or more hatch webs 23 fitted either transversely or longitudinally as desired. The sloping sides of the V-shaped bars 2 engage similarly in clined sides formed on the hatch cover sections, and the bars are secured in position by convenient manner' asj by"- w'elding;"a a g r block hasa p rtion whiehextendsbeyon f I plan views of the' construction shown of Figs. 7 and 8 respecdownwardly-by screwingfthe bolts 3* intoithe names-mt warm. 2 1:

mash d entend into re- V V cess'esgh formed 'conjointly by abutti'ng ends 0 of iad-jacentbarst -The'ends= ofthe outermost bars 2 --are bevelled; as shown, more particul'arl-y in Figure] 7, and extend underi'an- -inj are positivelylocked against-movement As 69* 8 it will' be "particularly?illustrated iin F I v Qisifilled seen thatthe open end of the mam block, the" securementybei g in as this limit otthe vb'arli This extending hasa reducecI ver-tical' dimensiona v preferab1y f0rmed=jnitsouternio t ce 'a ere ess==5 fori "containing the"head. offthe b019 3 s0 that no, portion of theibolt extends above is the topsurface ofthe elosed hatch. fjFurtlie r by -having the semi-circular 1 grooves injthe' ends of thefille r blockswhich-areengaged bya' boltglateral'displacementof the ends of Y the V -ba r "is prevented a more even distribution of lateralpressure is exerted ion b xi th -avatar g n he a. ing' Coven sections',"lwhen said V=bar isforced upper portion ofthe underlying web23.

The"hatch{cover sectionslmaybe provided with packing naterial such as; greased-"hemp Y which is securedtol one section and isicfofni iipressed between "that se'ction and section-* Ibis obvious'that moseskuieaiaanat i may'vary the details of construction as well- 1 i as arrangements "of, parts without. departing from the spiritof the inventionfiandgthere fore it is not'desi red to beilimitedltot heiforev going. except as {may i be acquired," by the]v Whatis. cl imed 131 1 v 1;: :I'nra hatch 'the combination of comprising a plurality? Jot small isectiohs 1 "an adjaent i bar wed'gingl a-pll'lralitv.oE

a, recessed:end adaptedj'to coact with a similarly recessed end-of an adjoining bar; and -ineans to 'move {said bar and the adjoining -ba1 into the: planeof said sections, to lockv JOSEPH the latter, 'saidfl neans cessed ends; i

I I :o i P isingaplus v y 9 1S tions; bars su pported' by a [said framing-"each bar adapted t sggurea H I: plurality 15 said sections; and single means ralitjiq of -small: sections ;.:ba1'"s supp'ortedlhy 7 go 1 plurality; of aid-sections, twoiof -said bars engaging the end surfaces of operating transverselv'of a ba to move a said sections, said bar having. p1ura1ityof sa dbars into the plane of sa1d;.;

sections-to lockthe latter." Q y i In testimony whereof We; aflix our signa- 1 tures. i

WILLIAMISHERWOOD. r T

* L A SHERwooD lyinggvvithin-o said re- 2. In a'jhatch provided vvithivveb ffaniing operating ti a'nsven sely of said barsjto move r: 'a philality ofsaidb arsjintothe plane of s'aid sectionstolock-thelatterg the combination oiiacover compi'ising. 'a plusaidiraming, each barf adapted to securea having their endsfinjsiibstantial abutmentf. V

r m n OP ratingitransverslyof Y V ;t .move :the abutting barsiiltQ the v v .k 1;-

I '""A'lnflghamhprovidedivith webamming plane of; {said I sections to; lock the latter;

I p the ,combina tionpfa cover comprising a plu- ;means operatingthroughsaid blocktto move V7 pluralityof saidfbars intothe planeofsaid baruinto 'thegplaneflofi said sections to lock ,thecombination of aVcover-comprising a] p1uv rality, ofisma11 sections;ahaigisiipported by 1 v saidifr'amiiigganld; adapted tq "s ec11rea:pli1ra1- ralitysmjallrsections;bars snppprtedby f 4' i ng their ends snbstanti'all-abutment; single means 'ope1 ating transversely of barst -m the "iabuttingsbal' v into-the E z 5. 111 a hatchprovided with" web framing tolsecure' a'plnrality of saidsectionsgfaiblock fitted to,an. 'end,;of one of {said barsyand 5 sectionsto lockthe-latter. I

-16," In ahatch J itv-ofi'sa-idsections a block; fittfldrtoa-anfend of'said barf and having a; reduced endqpoi' ition establishing a-irecess;, andrneans operating transverselyofgsaidrbantomove jsaid' 1 Q-thelattjer, said means lying' 'vvithinsaid recess.

, a '7. n a hatch provi'ded with :{webi fraxning -rality;iofsma1;1? sections bars'supported i the combination of acover'compi'isinga plu 'sai-d-framing eachtbaradapted-to secnre a iofisaidssections"to 1ock-the l atter g lx 1 3:: V a Y '8'. Inafhatchprovidedwith 'Webiraming to mov a pli ralityiofsaid hars'inix')v the plane "said ifrafiling, Peachibar adaptedato secure a 165 plurality of fs a idasecti ons'; and'single 'means' v 

